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Finding the Fourth Proportional to 5,230.70, 7,846.05 and 2,152.70

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Solution

The fourth proportional to 5,230.70, 7,846.05 and 2,152.70 is: 3,229.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.70 : 7,846.05 = 2,152.70 : x
  2. Step 2: Convert to fraction form
    5,230.70/7,846.05 = 2,152.70/x
  3. Step 3: Cross multiply
    5,230.70x = 7,846.05 × 2,152.70
  4. Step 4: Simplify right side
    5,230.70x = 16,890,191.84
  5. Step 5: Solve for x
    x = 16,890,191.84/5,230.70
  6. Step 6: Final answer
    x = 3,229.05

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.